Rudie Obias editor If you purchase an independently reviewed product or service through a link on our website, Variety may receive an affiliate commission. After making the transition from the Thirteenth Doctor (Jodie Whittaker) and the Fourteenth Doctor (David Tennant), “Doctor Who” now has a new Fifteenth Doctor (Ncuti Gatwa), who made his first appearance in the “Doctor Who Christmas Special” in late 2023. If you want to catch up with its previous seasons or watch its current season, “Doctor Who” is streaming on Disney+.